Principal Engineer

Hazen and Sawyer
📍 Fairfax, Virginia, United States 💼 Full Time 🕒 Posted July 08, 2026

Job Description

Hazen and Sawyer is seeking a Principal Engineer for our Fairfax, VA office.

Why Hazen and Sawyer:

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on all things water.
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management.
  • We foster a work environment low on bureaucracy and high in creativity.
  • We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed.
  • We currently have over 2,000 employees in 70+ offices throughout the United States, Latin America, Canada, and the UK.
  • A flexible hybrid work schedule supports today's busy professionals. 
  • Key Responsibilities:

  • Delivering public sector water and wastewater facilities...
  • Ready to Apply?

    Submit your application today and join our talented team at Hazen and Sawyer.

    Submit Application

    Job Details

    • Location Fairfax, Virginia
    • Job Type Full Time
    • Category Engineers
    • Posted Date July 08, 2026
    • Application Deadline August 17, 2026